We began in 1983 as an industrial door development division of RTZ (Rio Tinto Zinc). We had developed a unique door design that was quickly recognised by UK industry leaders. Our early clientele included British Steel, The British Oxygen Group, and the RAF. Following our success with basic industrial doors, we proceeded to develop our range of performance rated products.

As our work for the Ministry of Defence developed we began manufacturing a whole new range of high security doors, thus transforming Rhino into the versatile security door manufacturer we are today. In 1996-97 we were acquired by British Steel, eventually ending up as part of Corus through the merger of British Steel and Koninklijke Hoogovens in 1999, today known as Tata Steel Europe. Shortly after we re-formed following an MBO.

In 2015 we were acquired by Cyrus Investment Management and became Rhino Systems Ltd, an integrated part of the Cyrus Group of Companies. We now benefit from being part of a portfolio of precision engineering service companies, ranging from heavy fabrication to fine machining and advanced coatings.